3. Sara poured 830 mL of water into a large jar. She then added several slices of lemon with a total mass of 86 grams. The jar has a mass of 130 grams when
empty. What is the total mass of the filled jar? (1mL is = 1 gram of pure water)

Anybody wanna ? (picture included? )

Aplayground merry-go-round has a radius of 4.6 m and a moment of inertia of 200 kg-m2 and turns with negligible friction about a vertical axle through its center. a child applies a 26.0 n force tangentially to the edge of the merry-go-round for 15.0 seconds. if the merry-go-round is initially at rest, how much work did the child do on the merry-go-round?

What organization and environment is described above?